Web Caching Engine

I need advice on which Cisco product can be used to perform web caching to reduce our internet http traffic. Thanks in advance. We have about 2000 users in the campus.
Ho

I can't find exact statistics on the throughput for the CE's. I did find statistics on the CE network module, which I didn't mention in my earlier post.
http://www.cisco.com/en/US/products/hw/modules/ps2797/products_data_sheet09186a008010fb9f.html
This module can handle 200 transactions per second and 11.7 Mbps throughput running in proxy mode.
I can't find any similar information for the dedicated CE for some reason. Keep in mind that "concurrent TCP connections" or number of users may not be the best way to measure the load on the device. How big is your internet connection?
Also keep in mind that the device can run in transparent or proxy mode. In transparent mode, the device won't be a bottleneck if traffic is beyond it's capabilities. In proxy mode it would be.
I wouldn't want to say "this can support x many users". There are a lot of variables in selecting the product. I would talk to an SE to size your network more accurately.
HTH
Mike

Similar Messages

Web Cache Engines & Bandwidth Managers

Hello,
Could anyone recommend some good cache engine platforms and bandwidth managers for use in an ISP NOC?
The products should accommodate multi-gigabit throughputs, with support for 1GB/10GB interfaces.
I don't mind if they are not Cisco products. Thanks.
Felix

You can try
Viper TES-1000
BlueCoat PacketShaper
NetEnforcer
NetEqualizer
Caching Engines
Squid
ipCop
pfesense
moonwall
BlueCoat SG Proxy
Stratacache (ISP level)
Barracuda
Opteq iQ (ISP & Enterprise)
Best regards,
Sachin Garg

Cisco Web Caching Solution

Hi There,
I need a high availability web caching solution for 500 users, preferential with proxy funcionality.
Cisco had the Cisco Web Caching Engine, but it is End-of-Sales already. The new product that will replace the EOS product, is Wide Area Application Engine (WAE) plataforms. Is that right?
The Cisco Global Price List has a SKU product SE512-IPROXY-K9 (Security / iProxy WAE-512 bundle, 1GB MEM, 1 250GB HDD Incl.).
The question are:
The SKU product SE512-IPROXY-K9 is the right product for my needs?
What is the difference between the SKU SE512-IPROXY-K9 and the SKU WAE-512-K9?
Regards,
Pedro Vasques

Hi Pedro,
The WAE product line does WAN Optimization which includes HTTP optimization. The WAN Optimization solution works between two WAEs (one being at a Branch office and the other being at Data Center ). When employees at branch office tries to access resources like Servers at Data Center their TCP based traffic gets optimized. For more info pl go to http://www.cisco.com/go/waas
Cisco's Web Caching was a different solution. It caches the web objects when first user goes to a given web site. The following user requests will be served locally as long as cache history is available for that web page.
I suggest you contact either a Cisco partner or Cisco representative in your area.
thanks
Nat

ACE as cache engine for wccp redirection

Does anybody know if the ACE 4710 appliance supports WCCP acting as a web-cache engine? I am exausting all possible options, and then some, for deploying a new application networking environment. I just returned from ACE training last week and found myself ramping up to deploy a new ACE.
I have pretty much exhausted my options for topology. We discussed several different designs in class and I don't like any of them. I have some serious problems with using the ACE as a default-gateway for servers. That options is out due to how other "non application" traffic is handled. Traffic such as RDP from IT support staff, patching from SMS servers, virus dat updates, vulnerability scanning... it all routes to the ACE which has to have static routes... then clients hitting the application VIPs have to be natted so the ACE does not use the static routes and reply directly... it all becomes a very big problem over time.
Second and third options are one-armed and direct server return... both not suitable for my requirements.
Now... that leaves me with an option we currently have deployed. That is to use a distribution route-switch (Catalyst 4500 Sup-IV) in the middle. The Cat uses PBR to return http traffic from the web servers back to the ACE. All other traffic follows normal routing table.
Ok... that works perfect... except PBR is not supported in the Sup-6 engine. Unbelievable... I know. This is a major fly in the ointment for this new deployment.
Now... there is another protocol that is often used for redirection... WCCP. If the ACE were a wccp web-cache, the router could be configured to redirect ingress http to the ACE. But... the ACE would have to act as a web-cache engine and register with the Cat as a home-router.
I am sure this option is not an option... but it would be nice. The ACE 4710 appliance has the general processor to do it but it would have to be implemented in software. I'm running A3(1.0) and I cannot find anything related to wccp. Nothing in the command-reference.
If there are any Cisco developers interested in adding some killer funtionality... this would be it. Wccp can be done in layer-2 as well as layer-3. The Sup-6 supports layer-2 redirection. Since the ACE is generally layer-2 adjacent this would be rather easy to implement. Anyway... food for thought.

I just would like to mention that you could have ACE in bridge mode inserted between your servers and the gateway (4500).
All traffic will go through ACE but no need for nating and no statc routes (just one default route pointing to the 4500).
The only problems would be if you exceed the BW of the 4710 with all your traffic.
Regarding the WCCP support for the 4710 this is not currently in our roadmap.
Ask your cisco account team to introduce the request.
Thanks,
Gilles.

Question about connection between cache engine and cat6k

Dear sir,
Here is the problem description, please give me some help, thank you so much:
catalyst 6509 is enable for wccp v2.CE 7320 also enable the wccp v2.Wccp service 91 is configured on 6509.Service-munber 91 and port-list 1(with port number 8080) are also configured on CE 7320.Wccp communicates well about service number 91.
but browsing web page with port number 8080 gets always failed.
1.6509 wccp configuration:
ip wccp web-cache redirect-list 30
ip wccp 91
interface Vlan10
ip address 211.162.224.2 255.255.255.240
ip wccp web-cache redirect out
ip wccp 91 redirect out
2.ce7320 wccp configuration:
wccp router-list 1 211.161.1.49
wccp port-list 1 8080
wccp web-cache router-list-num 1
wccp service-number 91 router-list-num 1 port-list-num 1 application cache
wccp version 2
3.show info. from 6509 and ce 7320:
gwbn7320#sh wccp content-engines
Content Engine List for Service: Web Cache
IP address = 211.161.1.50
Routers seeing this Content Engine(1)
211.162.224.2
Content Engine List for Service: WCCPv2 Service 91
IP address = 211.161.1.50
Routers seeing this Content Engine(1)
211.162.224.2
gwbn7320#sh statistics http savings
Statistics - Savings
Requests Bytes
Total: 90685 460066803
Hits: 936 162710
Miss: 89749 459904093
Savings: 1.0 % 0.0 %
6509-left#sh ip wccp
Global WCCP information:
Router information:
Router Identifier: 211.162.224.2
Protocol Version: 2.0
Service Identifier: web-cache
Number of Cache Engines: 1
Number of routers: 1
Total Packets Redirected: 2525
Redirect access-list: 30
Total Packets Denied Redirect: 0
Total Packets Unassigned: 146
Group access-list: -none-
Total Messages Denied to Group: 0
Total Authentication failures: 0
Service Identifier: 91
Number of Cache Engines: 1
Number of routers: 1
Total Packets Redirected: 0
Redirect access-list: -none-
Total Packets Denied Redirect: 0
Total Packets Unassigned: 0
Group access-list: -none-
Total Messages Denied to Group: 0
Total Authentication failures: 0
Regards,
Sha

Gilles,
Thank you!
Here is the result:
6509-left#sh ip wccp 91 detail
WCCP Cache-Engine information:
IP Address: 211.161.1.50
Protocol Version: 2.0
State: Usable
Redirection: GRE
Initial Hash Info: 00000000000000000000000000000000
00000000000000000000000000000000
Assigned Hash Info: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Hash Allotment: 256 (100.00%)
Packets Redirected: 180
Connect Time: 00:07:06
Regards,
Sha

Cache engine http transparent proxy and caching

Hi..
My customer some GPRS user in which they couldn't control proxy setting of the web browser.
Is it possible to configure on a cache engine such that when these users access the Internet, they will be intercepted by the cache engine. THe cache engine then forwards the request to a proxy server and out to the Internet ?
Rgds
Eng Wee

It is possible to configure the cache engine to provide access to the users. The following URL shows an example on how to configure the Cisco Cache Engine for transparent caching using the Web Cache Coordination Protocol (WCCP).
http://www.cisco.com/warp/public/117/cache_engine/transparentconfig.html
This scenario is pretty similar to your requirement. Hope this helps.

Only 'web-cache' gets redirected - no other service groups...

I have a Netcache configured for transparent caching for port 80 and 443. The Netcahce IP is 164.72.49.253. We have a 6509, sup720 IOS. 12.2(17a)SX3, configured to redirect web-cache and 1 to the Netcache. Here is the config:
ip wccp web-cache
ip wccp 1
The 6509 interface that controls the subnet the netcache is on is configured thus:
interface Vlan1
ip address 164.72.49.131 255.255.255.128
ip wccp web-cache redirect out
ip wccp 1 redirect out
We have a PC on another subnet connected to the 6509 that we are using to test the config, and we can only get port 80 to be redirected to the Netchace. HTTPS port 443 never gets redirected. Service group 1 is configed on the Netcache as tcp port 443.
Here is the output of 'sh ip wccp':
ENGLAB-6513-Native#sh ip wccp
Global WCCP information:
Router information:
Router Identifier: 164.72.232.1
Protocol Version: 2.0
Service Identifier: web-cache
Number of Cache Engines: 1
Number of routers: 1
Total Packets Redirected: 3431
Redirect access-list: -none-
Total Packets Denied Redirect: 0
Total Packets Unassigned: 0
Group access-list: -none-
Total Messages Denied to Group: 0
Total Authentication failures: 0
Service Identifier: 1
Number of Cache Engines: 1
Number of routers: 1
Total Packets Redirected: 0
Redirect access-list: -none-
Total Packets Denied Redirect: 0
Total Packets Unassigned: 0
Group access-list: -none-
Total Messages Denied to Group: 0
Total Authentication failures: 0
ENGLAB-6513-Native#sh ip wccp 1 detail
WCCP Cache-Engine information:
Web Cache ID: 164.72.49.253
Protocol Version: 2.0
State: Usable
Redirection: GRE
Packet Return: GRE
Assignment: HASH
Initial Hash Info: 00000000000000000000000000000000
00000000000000000000000000000000
Assigned Hash Info: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Hash Allotment: 256 (100.00%)
Packets Redirected: 0
Connect Time: 00:33:23
ENGLAB-6513-Native#sh ip wccp web-cache detail
WCCP Cache-Engine information:
Web Cache ID: 164.72.49.253
Protocol Version: 2.0
State: Usable
Redirection: GRE
Packet Return: GRE
Assignment: HASH
Initial Hash Info: 00000000000000000000000000000000
00000000000000000000000000000000
Assigned Hash Info: FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
Hash Allotment: 256 (100.00%)
Packets Redirected: 2911
Connect Time: 23:37:29
What would cause the router to no redirect service-group 1 packets to the Netcache?

The sup720 does not support wccp yet.
The commands are available and some functionalities may work but currently the sup720 does not support wccp.
http://www.cisco.com/en/US/products/hw/switches/ps708/prod_bulletin09186a00801599bc.html
Regards,
Gilles.

Would a cache engine cache an incomplete file download ?

Hello,
I recently tried to download a large file from the internet and half way through
I cancelled it. Later on I downloaded the file again, can anyone tell me if part of
the file was cached and I received that the second time or was it a new download ?
Thanks in advance
Darren

When an object is requested, the Cache Engine checks if it has a copy of the requested object in storage. If it has it the Cache Engine sends the user the object. Otherwise, the Cache Engine gets the requested objects from the web server, stores a copy of the objects (caches them), and simultaneously forwards the objects on to the user.
So I think that the part of the download before you cancelled it, should have been served from the cache.
You may however confirm this using the Squid log and check if it is a HIT.
The following doc gives you details on the log analysis.
http://www.cisco.com/warp/public/117/cache_engine/CE_logcodes.html

How to Integrate 500 Series Cache Engine with WS-C3550-48-EMI

We are having a Catalyst 3550 L3 Switch, which is being used to provide Internet service. Now we want to integrate a 500 Series Cache Engine so that outbound http traffic is cached.
The Cat 3550-48-EMI switch is not supporting " ip wccp web-cache redirect out" command, instead it's supporting " ip wccp web-cache redirect in" command. So for outbound traffic no caching is happening. How this can be achieved?
Regards,
Malay.

in and out means catch traffic when it comes in or when it goes out respectively.
So you can configure the 'out' on the Internet facing interface to catch the request before it goes out to the Internet.
But you can also configure the 'in' on the client interface to catch the request when it comes into the router.
The 'in' gives much better performance because you catch the request before doing a route loockup.
The only disadvantage is that if you have many client vlans, you need to configure this 'in' command for each one of them.
Regards,
Gilles.

The Alteon Personal Content Cache vs cisco cache engine

The Alteon Personal Content Cache vs cisco cache engine
our customer want to deploy cache solution
and want state of art product in current market
can you tell me more in term of 1 perfomance
second current market share.

Hi James,
The Alteon Personal Content Cache is Nortel's OEM of the Novell ICS (now called "Volera Excelerator").
This forum isn't really the place to get into discussions of competitive differentiators, but suffice to say that we believe our solution has some significant benefits and features/functionality that the Alteon PCC lacks - for both Transparent Cache (TPC) and Content Delivery (CDN) deployments.
We have details on some recent large "customer wins" in the Content Edge delivery space on the web.
For some of these, see:
http://newsroom.cisco.com/dlls/corp_061801.html
http://newsroom.cisco.com/dlls/corp_041801b.html
There are numerous other examples of these kinds of deployments.
You should contact your Cisco account representative and I'm sure they'd be happy to share more information with you.
cheers,
lincoln.

Iip web-cache redirect command problem

Hello,
There is sample in : http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12112cea/3550scg/swwccp.htm
Fast Ethernet interfaces 0/2 to 0/5 are connected to the clients and they are configure as :ip wccp web-cache redirect in .And Fast Ethernet interface 0/1 is connected to the cache engine and it does not configure as : ip wccp web-cache redirect out.
in : http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/fun_c/fcprt3/fcd305.htm
The sample in this doc is configure as :ip wccp web-cache redirect out.
I want to know the different of :ip wccp web-cahe redirect out and ip wccp web-cache redirect in. And in which condition I shall use ip wccp web-cache redirect out and in which condition I shall use ip wccp web-cache redirect in ?

Sir,
The ip web-cache redirect in command is only a new addition in the late 12.1 and 12.2 train of IOS. Both commands do the same thing except the redirect in is on the interface where client sourced traffic enters the router and the redirect out is on the interface interface of the router. You do no use both at the same time.
My preference is for redirect in as the router does not need to route the packet because wccp picks the packet up on the incomming interface.
Cheers
Phil

IOS SLB transparent web-caches

Hi all,
I wanted to ask if anybody has implemented SLB with transparent web-caches, and if yes how was it done?
can anyone give me a short overview how to implement this? Because I couldn't find enough information on the Cisco site. We are able to implement SLB for various services, but unable to do the same thing with transparent web-caches.
Any help would be greatly appreciated
thanks

HI,
you can do this for example with a CSS (compare to http://www.cisco.com/en/US/products/hw/contnetw/ps789/products_configuration_example09186a0080093ff3.shtml). This is an example of how to implement transparent caching with a CSS. Same works if you are using a CSM. Required is using a Content Engine.
Regards,
Joerg

Web Cache 'Ping URL' not working.

Hi,
I have recently installed a Webcache clustered pair which sit in front of OHS which reverse proxys back to OUCM/Web Logic, my OWC version is 11.1.1.2 and am looking for some clarification of how the Ping URL actually works in Web Cache.
When OHS is shutdown, Webcache detects the service is down and prevents it from servicing requests, however it will not mark the service as down when I intentionally set ping URL to a page that does not exist generating a 404, will Ping URL polling only mark a server as being down if a 500 error is generated?
Something else I would like clarification of is 'Ping Interval', I have set this to be aggressive at '1' however I do not see any polling traffic or see any hits in OHS log that indicate polling of the Ping URL is taking place.
Thanks in advance,
Mark.

Not sure I need any update to this now, I've just read through the help section 'help/edit_add_appserver.htm' and can see that a 404 is not considered a failure and also that the server only starts to poll when the failover threshold has been reached.
This would explain why the server was not being marked as down, although I'm still not sure why I do not see the polling traffic in Apache logs but I can live with that :)
Cheers,
Mark.

Standalone webcache or Web cache from Oracle Apps Server 10.1.2.0.2?

Hi
I am installing web cache on two servers in web tier and J2EE server (with OHS) on another two servers in apps tier. Should I use standalone webcache or install from Oracle Apps Server package? If I choose Oracle Apps Server package, I have to disable Home, HTTP components. But it is DCM managed. Any suggestions?
And should I deploy my OHS servers on web cache servers in the web tier? In future we want to expand J2EE installation, we will deploy Portal with SSO, OID etc.
Regards
Shen Jie

Shen Jie,
Please review the Enterprise Deployment to see what are the best architectures.
Hope this helps.
Deepak

Error installing EM10gR2 Configuration assistant "Web Cache Configuration A

I am getting an error when the web cache configuration assistant is running. Here is the output of the message:
Output generated from configuration assistant "Web Cache Configuration Assistant" (attempt 2):
Command = /oracle/oms10g/jdk/bin/java -DORACLE_HOME=/oracle/oms10g -Djava.net.preferIPv4Stack=true -classpath /oracle/oms10g/sysman/webapps/emd/WEB-INF/lib/webcachecfg.jar:/oracle/oms10g/sysman/webapps/emd/WEB-INF/lib/emd.jar:/oracle/oms10g/lib/emSDK.jar:/oracle/oms10g/dcm/lib/dcm.jar:/oracle/oms10g/jlib/repository.jar:/oracle/oms10g/lib/xmlparserv2.jar:/oracle/oms10g/jlib/emConfigInstall.jar:/oracle/oms10g/jdbc/lib/classes12.zip:/oracle/oms10g/jdbc/lib/nls_charset12.jar:/oracle/oms10g/jlib/jndi.jar:/oracle/oms10g/jlib/rt.jar:/oracle/oms10g/jdk/lib/i18n.jar:/oracle/oms10g/jlib/ldapjclnt10.jar:/oracle/oms10g/jlib/ojmisc.jar:/oracle/oms10g/j2ee/home/jazn.jar:/oracle/oms10g/j2ee/home/jaas.jar oracle.ias.webcache.config.WebcacheConfig -oh /oracle/oms10g
Failed in smi manipulation().
A problem has occurred reading the initial configuration and storing it into repository
Resolution:
Please refer to the base exception for resolution, or call Oracle support.
Base Exception:
/oracle/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
Resolution:
Please make sure the values entered in OHS configuration files are correct.
oracle.ias.sysmgmt.exception.InvalidConfigurationException: Base Exception:
/oracle/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
Resolution:
Please make sure the values entered in OHS configuration files are correct.
     at oracle.ias.sysmgmt.repository.plugin.advanced.apache.StateTranslator.checkConfigFileValidity(Unknown Source)
     at oracle.ias.sysmgmt.repository.plugin.advanced.apache.StateTranslator.validateConfigDuringEvaluate(Unknown Source)
     at oracle.ias.sysmgmt.repository.plugin.advanced.apache.PlugInImpl.localConfigValidation(Unknown Source)
     at oracle.ias.sysmgmt.repository.DcmPlugin.localConfigValidation(Unknown Source)
     at oracle.ias.sysmgmt.repository.RepositoryImpl.performLocalValidation(Unknown Source)
     at oracle.ias.sysmgmt.repository.SyncUpHandler._updatePluginConfigData(Unknown Source)
     at oracle.ias.sysmgmt.repository.SyncUpHandler.syncUpFromLocalFiles(Unknown Source)
     at oracle.ias.sysmgmt.repository.RepositoryImpl.syncUpFromLocalFiles(Unknown Source)
     at oracle.ias.sysmgmt.utility.editpropagator.PropagateLocalEdit.repositoryInit(Unknown Source)
     at oracle.ias.sysmgmt.persistence.utility.PMUtility.initConfiguration(Unknown Source)
     at oracle.ias.sysmgmt.task.TaskMaster.initConfiguration(Unknown Source)
     at oracle.ias.sysmgmt.task.TaskMaster.sysInit(Unknown Source)
     at oracle.ias.sysmgmt.task.TaskMaster.sysInit(Unknown Source)
     at oracle.ias.sysmgmt.task.InstanceManager.sysInit(Unknown Source)
     at oracle.ias.sysmgmt.task.InstanceManager.init(Unknown Source)
     at oracle.ias.sysmgmt.EntryPoint.init(Unknown Source)
     at oracle.ias.webcache.config.WebcacheConfig.smiSetup(WebcacheConfig.java:483)
     at oracle.ias.webcache.config.WebcacheConfig.smiEnableWebcache(WebcacheConfig.java:454)
     at oracle.ias.webcache.config.WebcacheConfig.enableConfiguration(WebcacheConfig.java:299)
     at oracle.ias.webcache.config.WebcacheConfig.main(WebcacheConfig.java:87)
Configuration assistant "Web Cache Configuration Assistant" failed
The "/oracle/agent10g/cfgtoollogs/configToolFailedCommands" script contains all commands that failed, were skipped or were cancelled. This file may be used to run these configuration assistants outside of OUI. Note that you may have to update this script with passwords (if any) before executing the same.-----------------------------------------------------------------------------
My etc/hosts file looks like:
cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
172.24.254.25 k25
Ugh!

sorry, a little bit late but i had the same problem.
/oracle/oms10g/Apache/Apache/bin/httpd: error while loading shared libraries: libdb.so.2: cannot open shared object file: No such file or directory
simple make the link "ln -s libdb.so.3 libdb.so.2" in the /usr/lib directory.
regard´s
roland

Web Caching Engine

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